Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 12 1.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/02/2017   19:08:29   ( -79.59, -29.64) 12/02/2017   19:08:08  ( -79.59, -29.65)    0.35                21
 12/02/2017   19:57:47   (  79.87, 140.17) 12/02/2017   19:58:43  (  79.88, 140.28)    2.01                56
 12/05/2017   10:36:44   (  76.49, -96.39) 12/05/2017   10:35:31  (  76.67, -97.56)   35.64                73
 12/05/2017   11:24:57   ( -79.69,  87.00) 12/05/2017   11:24:59  ( -79.69,  87.03)    0.72                 2
 12/08/2017   02:52:05   (  79.48,  33.74) 12/08/2017   02:51:13  (  79.48,  33.70)    0.94                52
 12/08/2017   03:41:24   ( -79.79,-156.39) 12/08/2017   03:41:49  ( -79.79,-156.27)    2.42                25
 12/10/2017   19:08:32   (  79.61, 150.55) 12/10/2017   19:08:03  (  79.62, 150.61)    1.34                29
 12/10/2017   19:57:54   ( -79.81, -40.37) 12/10/2017   19:58:43  ( -79.80, -40.44)    1.55                49
 12/13/2017   11:25:02   (  79.63, -93.48) 12/13/2017   11:24:57  (  79.62, -93.58)    2.08                 5